Wall structure for refrigerator cars



J. SVSWANN WALL STRUCTURE FOR REFRIGERATOR CARS 1 March 31, 1959 FiledAug; 18, 1955 2 Sheets-Sheet l INVENToR. Jamef/JQU/Z,

BY A

llt lillkctv March 31, 1959 J. s. SWANNy WALL STRUCTURE FOR REFR GERATORCARS 2 Sheets-Sheet 2 Filed Aug. 18, 1955 IN VEN TOR. Jam/e5 51m/@7272,BY

WALL STRUCTURE FOR REFRIGERATOR CARS 'James S. Swann, Homewood,Ill.assignor to Standard Railway Equipment Manufacturing Company, Chica.go, Ill., a corporation of Delaware AApplication August 18, 1955, SerialNo. 529,268

2 Claims. (Cl. 10S-409) This invention relates to railway refrigeratorcars and has special reference to the structure of the walls of saidcars.

Some refrigerator cars are double walled, that is, they are providedwith a side plate, side sill, side wallposts extending therebetween andside sheathing secured to Isaid side posts, which constitute the outer'wall of the car. Spaced inwardly from this outer wall is an inner wall,which consists of an inner side plate, an inner side sill, spaced innerside posts extending therebetween, and side wall lining secured tosaidinner posts. Between these inner and outer walls is'installedblanket insulation, secured in place in any acceptable manner.

In the so-called top bunker refrigerator cars, the inner "wall isconstructed to provide vertical flues between the l inner posts so thatair can circulate by convection currents from the top of the car to thebottom thereof,

`'through said iiues.

It is an object of thepresent invention to provide a novel form ofextruded metallic inner side post to reduce the weight of the car andformed in a manner to facilitate *the installation of the flue sheets.

. `It is another object of the invention to form the flue i'slieets -sothat they may be sprung into place along their vertical side marginaledges into grooves formed in said posts, along their upper horizontalmargin into another groove and fastened along their lower horizontalmargin to a car post.

It is a further object of the invention to provide a flue sheet that iseasily assembled.

Further objects and advantages of this invention will become evident asthe description proceeds and from an examination of the accompanyingdrawing which illustrates several embodiments of the invention and inwhich similar numerals refer to similar parts throughout the severalviews.

In the drawings:

Figure 1 is a partial transverse section of a refrigerator car embodyingthe invention.

Figure 2 is a section on line 2-2 of Figure 1.

Figure 3 is a broken perspective view of the embodiment shown in Figures1 and 2.

Figure 4 is a perspective view of a modified form of the invention.

Figure 5 is a horizontal section through the inner wall of themodification shown in Figure 4.

The general parts of the refrigerator car shown are the roof 12, sideplate 13, outer wall sheathing 14, side sill 15, spaced wall posts 16,spacer block 17, inner side sill 18, inner side plate 19, inner sidepost 40, ue sheets 21, lining 22, forarninous floor rack 23, insulatedoor 24, and space 25 between the floor rack 23 and oor 24. A hatch 11 isprovided through the insulated roof 12 and a ceiling 26 is providedwhich extends between the inner side plates 19, said hatch 11 extendingthrough said ceiling.

Adjacent the ceiling 26 and inner side wall is a refrigerant container27 having an opening 28 through the p ICC 'vtop-thereofregistering withthe hatch 1.1 vthrough which it may be iced. A drip pan 29 extends fromthetoplo'f the lining 22 under the container 27 in slightlyspacedAceiling 26 about the lcontainer 2 7 to ues '30 and downwardlytherethrough to space 25 and thence upwardly through the foraminous'rack23 to the lading compart ment 31 where the cycle is repeated. l

A horizontally disposed clip 35 is secured tothe inner sider plate 19,the lower margin of said clip being offset suiciently to allow the uppermargin 36Tof the ue sheets to-be inserted between said offset margin andthe inner side plate, as clearly shown in Figure 1. The side margins39-39 ofthe flue sheet are held by posts 40.

Referring now to Figure 2, the extruded inner yside post 40 is amodified H-beam section, theweb `41iof which is thickened somewhat as at42 adjacent one flange 43 which is narrower than the other flange 44.The opposite longitudinal side edges of ange 43 a'refp'rovided `withgrooves 47 into which thevertical side margins the llue area 30. Theupper margin 36 and side margins 39-39 of each flue'isheet are in theform of vlateral anges occurring substantially in the same plane,whereas the lowermargin 51 projects yinwardly and downwardly forattachmentiasby bolts 54, to thesimilarly inclined tiange 52 of thegutter 53 along the side margin of the car floor.

In installing the liue sheets, the sides of the pan are compressed untilthe vertical margins 39-39 may enter the grooves 47 in anges 43 ofadjacent posts 40, and then the liue sheet is slid upwardly until theupper horizontal margin 36 extends under the clip 35, when the bolts 54are applied, and the ue sheet is thus securely held in place.

The car lining 22 is usually of plywood and is secured to the ilanges 43of the spaced inner posts 40. The lower edge of said lining terminatesapproximately on a horizontal plane with the foraminous rack 23. Thevertical edges of the lining meet over an inner post ange 43, and areformed with a shiplap joint as shown in Figure 2. The face of flange 43is provided with a central row of spaced holes which extend into thethickened portion 42 of web 41 so that self tapping-screws 59 may beapplied.

In the alternative form of the invention, shown in Figures 4 and 5, avertical post 70 is mounted between the inner side plate 19 and innerside sill 18 of a railway car. The vertical post is provided withvertical grooves along opposite sides for holding the side marginaledges of llue sheets 71.

The vertical -post has a flange 73, as more clearly shown in Figure 5,provided with grooves 74 in the opposite longitudinal side edges. Anouter part 75 and an inner part 76 is formed at eachside edge of theange 73 by the grooves 74. The inner part 76 is of a narrower width thanthe outer part 75 so as to allow easier insertion of the ilue sheets inthe grooves from the inside.

A web 78 supports flange 73 adjacent an outer ange 80 of the verticalpost 70. In this construction the ue sheets do not have the pan shapeconstructionas the embodiment shown in Figures 1 to 3.

An inner ange 81 is mounted on the web 78 opposite outer ange 80. Asshown in the drawing, outer ange .80extends to'one side, while innerangev81 extends `thegrooves 74 in ilange 73, and then the ne sheetnisslid upwardly until the upper horizontal marginal vedge 90 contacts theinner side plate 19.

` yA block 91 is inserted under the lower marginal ,edge of the ue sheetresting on inner side sill 18. A drain vboard 92 may be inserted aboveblock 91 and under the marginal edge 94 of the ue sheets 71 and extendedover the inclined ange 95 of a gutter 93.

The car lining 22 of plywood is secured to inner flanges 81 of thespaced inner posts 70. The vertical edges of the lining meet over theinner post 70 andare formed with a shiplap joint, as shown in Figure 5.The face of ange 81 is provided with a row of spaced holes which extendinto the thickened portion 82 of web 78 so, that self-tapping screws 59may be applied.

In the drawing and specification, there have been set forth severalembodiments of the invention, and although specificl terms are employed,they are used in a generic and descriptive sense only and not forpurposes of lmitation. Changes in form and in the proportion of parts,as well as the substitution of equivalents are contemplated, ascircumstances may suggest or render expedient, without departingfrom-the spirit or scopeof this invention as Afurther defined in thefollowing claims.

Also it will be noted that being extruded, the inner post may be formedto provide the required strength in accordance with the kind of metalused.

I claim: 1. In a refrigerator car wall having an inner side sill andinner side plate, vertical posts extending between said sill and plateandl connected at their ends thereto, said posts having a web supportingan inner flange normal to and extending equally on opposite sides ofsaid web, said web being thickened adjae'ent said inner ange, a groovealong each vertical longitudinal edge of said inner flange, ue sheetsbetween said vertical posts, each flue sheet having a generally panshape body portion with side marginal edges compressed so as to entersaid grooves of said innerlange and held therein by their inherentresiliency, and lining secured to the inner face of said anges byfastening means` extending through said lining and into the thickenedportion of said web.

2. In a refrigerator car wall having an inner side vsill and inner sideplate, spacedvvertical posts extending between said sill and platehaving a web supporting aninner flange normal to and extending equallyon opposite sides of said web, a groove along each vertical longitudinaledge of said inner ange, said web being thickened adjacent said` liange,flue sheets extending between said vertical posts, said tlue sheetshaving a body portion with side and top marginal edges in the sameplane, said side marginal edges being compressible so as to enter saidgrooves of said inner flange and be held therein by their inherentresiliency, a clip member secured tosaidl inner side plate for holdingsaid top marginal edge, and lining secured to the inner face of saidange by fastening means extending through said lining and into thethickened portion of said web.

References Cited in the tile of this patent may

